d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer - Weather-Resistant 100316268 choose your Loopback source and

choose your Loopback source and customise the user-assignable front panel buttons on SSL 12 via the powerful but intuitive console-style mixer on-screen

Display: OLED display

Sensitivity (for full rated power at 4 ohms):

4 W into 15

d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer - Weather-Resistant 100316268 choose your Loopback source andd&b audiotechnik 21S SUB 21 Inch Passive Subwoofer Weather Resistant The 21S SUB is a high performance subwoofer for use with the xS Series and xA Series loudspeakers and is intended for a wide range of permanently installed applications. The cabinet houses a single long excursion 21" driver in a bass reflex design. The large, specially shaped reflex port enables the 21S SUB to achieve high Sound Pressure Levels from a cabinet with a small footprint.